Electra alpha8 spec updates #18920

Job	Run time
lockbud	14m 0s
Check for 'skip-ci' label	1s
check-code	9m 36s
check-msrv	5m 7s
target-branch-check	1s
release-tests-windows	36m 14s
beacon-chain-tests	31m 27s
op-pool-tests	15m 40s
network-tests	18m 20s
slasher-tests	1m 34s
release-tests-ubuntu	24m 2s
basic-simulator-ubuntu	13m 29s
cargo-udeps	7m 37s
cli-check	6m 37s
compile-with-beta-compiler	13m 31s
debug-tests-ubuntu	11m 39s
ef-tests-ubuntu	10m 42s
execution-engine-integration-ubuntu	12m 24s
fallback-simulator-ubuntu	11m 13s
state-transition-vectors-ubuntu	2m 29s
test-suite-success	4s
	4h 5m 47s

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